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HP 550 Notebook PC
Maintenance and Service Guide
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© Copyright 2008 Hewlett-Packard Development Company, L.P. Bluetooth is a trademark owned by its proprietor and used by Hewlett-Packard Company under license. Intel, Core, and Celeron are trademarks of Intel Corporation in the United States and other countries. Microsoft, Windows, and Windows Vista are U.S. registered trademarks of Microsoft Corporation. SD Logo is a trademark of its proprietor. The information contained herein is subject to change without notice. The only warranties for HP prod
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Safety warning notice WARNING! To reduce the possibility of heat-related injuries or of overheating the computer, do not place the computer directly on your lap or obstruct the computer air vents. Use the computer only on a hard, flat surface. Do not allow another hard surface, such as an adjoining optional printer, or a soft surface, such as pillows or rugs or clothing, to block airflow. Also, do not allow the AC adapter to contact the skin or a soft surface, such as pillows or rugs or clothing
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iv Safety warning notice
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Table of contents 1 Product description 2 External component identification Top components ................................................................................................................................... 6 TouchPad ............................................................................................................................ 6 Buttons, lights, and speaker ................................................................................................ 7 Keys ....
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Equipment guidelines ....................................................................... 35 Unknown user password ................................................................................................... 36 Component replacement procedures ................................................................................................. 37 Serial number .................................................................................................................... 37 Computer fe
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System DMA specifications ................................................................................................................ 93 System interrupt specifications ........................................................................................................... 94 System I/O address specifications ..................................................................................................... 95 System memory map specifications ...........................................
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RJ-11 (modem) ................................................................................................................................ 128 RJ-45 (network) ................................................................................................................................ 129 Universal Serial Bus ......................................................................................................................... 129 10 Power cord set requirements Requirements for all coun
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1 Product description Category Description Computer models Computer models equipped with equipped with GLE960 system GME965 system board board Processors Intel® Core™2 Duo processors T5670 1.80-GHz processor, 2-MB L2 cache, √ ● 800-MHz front side bus (FSB) ● T5470 1.60-GHz processor, 2-MB L2 cache, √ 800-MHz front side bus (FSB) T5270 1.40-GHz processor, 2-MB L2 cache, √ ● 800-MHz FSB Intel Celeron® M processors P550 2.0-GHz processor, 1-MB L2 cache, 533- √ ● MHz FSB ● P530 1.73-GHz proce
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Category Description Computer models Computer models equipped with equipped with GLE960 system GME965 system board board Supports the following configurations in all countries √ √ and regions except Brazil: ● 4096-MB total system memory (2048 × 2, dual- channel) ● 3072-MB total system memory (2048 + 1024) ● 2560-MB total system memory (2048 + 512) ● 2048-MB total system memory (1024 × 2, dual- channel) ● 2048-MB total system memory (2048 × 1) ● 1536-MB total system memory (1024 + 512) ● 1024-MB
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Category Description Computer models Computer models equipped with equipped with GLE960 system GME965 system board board Supports the following Parallel ATA (PATA) drives: √ √ ● DVD±RW and CD-RW SuperMulti Double- Layer Combo Drive with LightScribe ● DVD/CD-RW Combo Drive ● DVD-ROM Drive Supports the following Serial ATA (SATA) drives: √ √ DVD±RW and CD-RW Supermulti Double- ● Layer Combo Drive with LightScribe DVD/CD-RW Combo Drive ● DVD-ROM Drive ● Diskette drive Supports external USB disket
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Category Description Computer models Computer models equipped with equipped with GLE960 system GME965 system board board SD Card Reader supporting Secure Digital (SD) √ √ Memory Card and MultiMediaCard (MMC) Ports Audio-in (stereo microphone) √ √ Audio-out (stereo headphone) √ √ RJ-11 (modem) √ √ RJ-45 (Ethernet, includes link and activity lights) √ √ USB (3) √ √ VGA (Dsub 15-pin) supporting 1600 × 1200 external √ √ resolution at 75-GHz (hot plug/unplug with auto- detect) 2-pin AC power √
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Category Description Computer models Computer models equipped with equipped with GLE960 system GME965 system board board Windows Vista Business with XP Professional √ Japan (in Japan only) Windows Vista Business with XP Professional √ √ Japan with Office Personal (in Japan only) Windows Vista Business with XP Professional √ √ Japan with Office Personal with PowerPoint (in Japan only) Windows Vista Business with XP Professional √ √ Japan with Office Professional (in Japan only) Windows Vist
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2 External component identification Top components TouchPad Item Component Function (1) TouchPad* Moves the pointer and selects or activates items on the screen. (2) Left TouchPad button* Functions like the left button on an external mouse. (3) Right TouchPad button* Functions like the right button on an external mouse. (4) TouchPad scroll zone Scrolls up or down. *This table describes factory settings. View or change pointing device preferences as follows: In Windows Vista, select Start > Contr
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Buttons, lights, and speaker Item Component Function (1) Caps lock light On: Caps lock is on. (2) Wireless button Turns the wireless feature on or off but does not establish a wireless connection. NOTE: You must set up or access a wireless network to establish a wireless connection. (3) Wireless light Blue: An integrated wireless device, such as a ● wireless local area network (WLAN) device, the HP Broadband Wireless Module, and/or a Bluetooth device, is on. Amber: All wireless devices are off.
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Item Component Function (5) Power light ● On: The computer is on. ● Blinking: The computer is in the Sleep state (Windows Vista) or Standby (Windows XP). ● Off: The computer is off or in Hibernation. (6) Speaker Produces sound. Keys Item Component Function (1) esc key Displays system information when pressed in combination with the fn key. (2) fn key Executes frequently used system functions when pressed in combination with a function key or the esc key. (3) Windows logo key Displays the Windows
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Front components Item Component Function (1) Audio-out (headphone) jack Connects optional powered stereo speakers, headphones, ear buds, a headset, or television audio. (2) Audio-in (microphone) jack Connects an optional computer headset microphone, stereo array microphone, or monaural microphone. (3) SD Card Reader Supports the following optional digital card formats: Secure Digital (SD) Memory Card ● MultiMediaCard (MMC) ● Front components 9
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Right-side components Item Component Function (1) Optical drive Reads an optical disc. (2) Security cable slot Attaches an optional security cable to the computer. NOTE: The security cable is designed to act as a deterrent, but it may not prevent the computer from being mishandled or stolen. 10 Chapter 2 External component identification
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Left-side components Item Component Function (1) RJ-11 (modem) jack Connects a modem cable. (2) Vent Enables airflow to cool internal components. NOTE: The computer fan starts up automatically to cool internal components and prevent overheating. It is normal for the internal fan to cycle on and off during routine operation. (3) External monitor port Connects an external VGA monitor or projector. (4) Power connector Connects an AC adapter. (5) RJ-45 (network) jack Connects a network cable. (6) US
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Bottom components Item Component Function (1) Battery release latches (2) Release the battery from the battery bay. (2) Battery bay Holds the battery. (3) Vents (6) Enable airflow to cool internal components. NOTE: The computer fan starts up automatically to cool internal components and prevent overheating. It is normal for the internal fan to cycle on and off during routine operation. (4) Memory module compartment Contains the memory module slots. (5) WLAN module compartment (select models only
